Vehicle control mechanism



Nov. 21, 1933. v. G. APPLE VEHICLE CONTROL MECHANISM Filed June l2, 1930 INVENToR. p/o/e ATTORNEYS /ncent G. @wb2/@6M Emil -inw N Patented Nov. 21, 1933 UNITED STATES PATENT OFFICE VEHICLE CONTROL MECHANISM Vincent G. Apple, Dayton, Ohio, assignor to Bendix Brake Company, South Bend, Ind., a corporation of Illinois Application June 12, 1930. Serial No.'460,722

5 Claims. (Cl. 192-3) My invention relates to vehicle control mechfrom the engine pistons draws the liquid from anism and has particular reference to means for the iloat chamber through the passage 30 into automatically closing down the supply of fuel to the jet passage 32 into the mixing chamber 34, Permit idling Speed Only f the mOOr 1113011 ep- Where it is mixed with a proper proportion of plication of the brakes. Not infrequently the ein Its new into the cylinders from the mix- 30 throttle, either hand 01 feel?.A beCOmeS jammed in ing chamber is regulated in the customary manwide open position and at such times the vehicle ner by means 0f the butterfly valve 36.

Operator is apt t0 become panicky and serious In the jet passage 32 is a needle valve 38 with accidents may result. For even though the brakes e, heavy iron plug 40 secured to its lower end. A

are applied under Such OTCUmSanCeS unleSS the coil or solenoid 42 surrounds the valve stem with 65 Clutch S lihlOWn in the racing mOOI Will COIlnlle sufiicient clearance to permit free movement of to counteract the elect of the brakes and render the piug 40 When the brake pedal 13 is dethe Vehicle .llnCOIltrOllable pressed and the electric circuit thus made through It 1S el Dllmaly Object 0f my invention t0 liethe closing of switch 20, the coil 42 becomes enerclude the possibility 0f Such an Occurrence by gized through the conductor 43 and ground lead 70 providing means for automatically cutting dOWn 44 to cause the solenoid plunger, or iron plug 40, the Supply 0f f llel flowing through the CaTPl to be lifted to force the tapered portion 46 of the rettor to the mixing chamber when the veh1cle needle valve inte the iet passage 32 The maxibrakes are applied to such an extent that the mum movement of the pluriger is limited by the motorl slows to idling Speed. l lower extremity 45 of the wall of the jet passage 5 Various other obiects and meritorious features 32 so that the tapered portion 46 of the valve dees of my mvenllop will be 'ppa'rept rm the fol' not quite close the jet passage, thus permitting a lowing description taken in conJunction with the Sumcent supply of fuel to pass to run the meter drawing wherein: at mun g speed.

trllrllrfl H115 aosylnuwal mus' When the solenoid is cle-energized upon release 80 Fig 2 is aydetaed View of my automatic fuel of brake pedal 18 the weighted portion 40 causes Stoppge mechanism the needle valve 38 to drop back into its normal position, thereby once again opening wide the In Fig. 1 the numeral 10 indicates the confuel passage to the mixing chamben The iron 85 ventional automobile chassis frame upon which are mounted the wheels 12 and the internal comcore 40 and solenoid C011 42 ae held m place by busiion engine 14. Associated with each of the means. 0f a threaded Cap 48 Whlcbf may be rotated wheels is an electrically operated brake applyto adJust me Slze of the Opemng around the ing device Such as a Solenoid Cram, other de tapered portion 46 of the needle valve. It will sired mechanism, which are connected in circuit be apparent that? as the Cap 48 1S unscrewed to 90 with the battery 16 and controlled through the lower the s eat of the need1e-va'lve 38 the nor' mal stroke imparted to the said valve upon enerbrake pedal 18 which closes the switch 20 to make the eireuil-l through the brake actuating gization of the solenoid coils 42 will create a less restricted opening about the tapered point 46 of mechanism. My improvement consists of means included the needle Valve n nmedlately adlacenl" tn ,e fuel 95 passage 30. In this way the idling speed of the in this circuit from battery 16 for cutting down the fuel supply going to the engine 14 through engine may be predetermined- Carburettor 22. On application of the brakes While I haVe Illustrated af Preferred embOdland consequent making of the electric circuit this ment OI the Carrying 011i? 0f the desired funCtOn,

fuel closing mechanism automatically becomes it is to be understood that other means for ac- 100 operative to shut 01T the supply of fuel to the encomplishing the same purpose will be obvious to gine to such an extent that the motor simply those skilled in the art and for that reason I inruns at idling speed. tend to limit myself only within the scope oi' the In Fig. 2 I have illustrated the particular mechappended claims 50 anism whereby the fuel supply is cut down auto- 1 Vehicle control mechanism iue1uding in 105 matically. A feed Dpe 24 Connects the Vacuum combination, an internal combustion engine, tank 25 with the float chamber 26 of the carbrakes and means for applying the same, engine burettor, this float chamber beine maintained fue1f1ow control means, and independently operlled t0 the propel' level With fuel by means 0f able means constituting a part of such control 5 the Oat 601115101 needle Valve 28. The Suction' means responsive to an electric circuittocut down 110 the flow of fuel to the engine to a predetermined minimum.

2. Vehicle control mechanism including, in combination, an internal combustion engine, brakes and means for applying the same, engine fuel flow control means, independently operable means constituting a part of such control means responsive to an electric circuit to cut down to a predetermined minimum the flow of fuel to the engine, and means for automatically making such a circuit on application of the brakes.

3. Control mechanism for a vehicle having an internal combustion engine and brakes comprising brake operating means, a Carburettor provided with a throttle valve operable to control the oW of the fuel mixture to the engine and provided with a fuel inlet having a valve controlling the flow of fuel therethrough, said latter valve being responsive to the functioning of the brake operating means.

4. Control mechanism for a vehicle having an internal combustion engine and brakes comprising manually operable brake operating means, a carburetor associated with said engine and including a primary and secondary valve, said primary valve being operable to limit the ovv of fuel through said secondary valve to a predetermined minimum, means associated with said manually operable brake applying member and said primary valve automatically operable upon application of the brake to close the primary valve t0 the minimum ovv position on application of the brakes and manually operable means coupled with said secondary valve for operating the latter at will.

5. Control mechanism for a vehicle having an internal combustion engine and brakes compris, ing manually operable brake operating means, a carburetor associated with said engine and including a primary and secondary valve, said primary valve being operable to limit the flow of fuel through said secondary valve to a predetermined minimum, means associated With -said manually operable brake applying member and said primary Valve automatically operable upon application of the brake to close the primary valve to the minimum flow position on application of the brakes and manually operable means coupled with said secondary valve for operating the latter at Will, said primary valve being operable through gravity forces upon release of the brakes to permit free flow of the fuel to said secondary valve.

VINCENT G. APPLE. 

